Pisces Themed Galaxy Cake (Printable version)

Celestial layer cake with shimmering glitter and vibrant blue-purple buttercream swirls on vanilla sponge.

# Ingredient List:

→ Vanilla Sponge

01 - 2½ cups all-purpose flour
02 - 2½ teaspoons baking powder
03 - ½ teaspoon salt
04 - 1 cup unsalted butter, room temperature
05 - 2 cups granulated sugar
06 - 4 large eggs, room temperature
07 - 1 tablespoon pure vanilla extract
08 - 1 cup whole milk, room temperature

→ Galaxy Buttercream

09 - 1½ cups unsalted butter, room temperature
10 - 5 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons vanilla extract
13 - Gel food coloring in navy blue, purple, black, and teal
14 - Edible glitter in silver, blue, or iridescent finish

→ Decoration

15 - White fondant for Pisces symbols or stars, optional
16 - Silver star sprinkles, optional

# How-To Steps:

01 - Preheat oven to 350°F. Grease and line three 8-inch round cake pans with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt until evenly distributed.
03 - In a large bowl, beat butter and sugar together until light and fluffy, approximately 3 to 4 minutes.
04 - Add eggs one at a time to the butter mixture, beating thoroughly after each addition. Mix in vanilla extract until fully combined.
05 - Alternately add flour mixture and milk to the butter mixture, starting and ending with flour. Mix until just combined, avoiding overmixing.
06 - Divide batter evenly among the three prepared pans.
07 - Bake for 25 to 30 minutes until a toothpick inserted into the center emerges clean. Do not overbake.
08 - Allow cakes to cool in pans for 10 minutes, then invert onto wire racks to cool completely before frosting.
09 - Beat butter until creamy, then gradually add powdered sugar, milk, and vanilla extract. Beat until smooth and fluffy.
10 - Divide buttercream into four separate bowls and tint each portion with distinct galaxy colors: navy blue, purple, teal, and black.
11 - Place alternating spoonfuls of each colored buttercream onto cake layers and sides. Use an offset spatula to swirl gently, creating a celestial galaxy effect.
12 - Sprinkle edible glitter generously over the frosted cake. Add fondant Pisces symbols or stars if desired.
13 - Refrigerate cake for 30 minutes to allow the buttercream to set and the design to stabilize before slicing.

# Expert Advice:

01 -
  • The vanilla sponge is buttery and tender enough to actually taste special, not like you're just eating frosting on a vehicle.
  • Three layers mean you get that satisfying moment when everyone sees the full height of the cake and gasps a little.
  • Edible glitter transforms something homemade into something that looks like it came from a fancy bakery, which feels like a delicious secret.
02 -
  • Room temperature ingredients are not a suggestion—they're the difference between silky frosting and broken, grainy mess that looks like sand.
  • Edible glitter sticks better to buttercream that's slightly moist, so don't frost the cake hours ahead or the surface will be too dry to hold the shimmer.
03 -
  • Chill the layered cake for at least thirty minutes before cutting—the cold sets the buttercream and creates cleaner slices that show off your work.
  • Brush cooled cake layers lightly with simple syrup before frosting to keep them moist through the next day, which is especially helpful if you're assembling ahead.
Go back